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	\path (0,2.6) node[above] {$z$}
	                   (2.324,-.566) node[right] {$x$}
	                   (2.066,1.131) node[right] {$y$};
	\path (0,0) node[left,xshift=-0.5mm] {$v_3$}
				(1.549,-.377) node[below,yshift=-1mm] {$v_2$}
	                  (1.033,.566) node[left, xshift=-1mm, yshift=1mm]{$v_1$}
				(2.582,.189) node[right, xshift=0.5mm] {$v_0$}
				(0,1.733) node[left, xshift=-0.5mm] {$v_7$}
	                  (1.549,1.356) node[above, xshift=-1mm] {$v_6$} 
	                  (1.033,2.299) node[above, xshift=1mm] {$v_5$}  
				(2.582,1.922) node[above, xshift=1mm] {$v_4$};
	\end{tikzpicture}%%
\end{preview}
\end{document}
%\end{center}
%\vspace*{\fill}
%\end{document}
%% End sketch output
